Now with only "sna" enabled (which I think I read somewhere should be the
default and that's why I didn't enable it before) I got GPU hung again.

uname -a:
FreeBSD bsd 10.0-RELEASE FreeBSD 10.0-RELEASE #0 r260789: Thu Jan 16
22:34:59 UTC 2014     r...@snap.freebsd.org:/usr/
obj/usr/src/sys/GENERIC  amd64

dmesg, error_state, pciconf, pkginfo and Xorg.0.log can be downloaded here

https://dl.dropboxusercontent.com/u/10335306/GPU_hung_logs.zip



--
Johannes Lundberg
BRILLIANTSERVICE CO., LTD.

On Fri, Sep 12, 2014 at 10:14 AM, Garrett Cooper <yaneurab...@gmail.com>
wrote:

> On Thu, Sep 11, 2014 at 6:08 PM, Lundberg, Johannes
> <johan...@brilliantservice.co.jp> wrote:
> > First try with sna+swapbufferswait+tearfree gave me this after a while
> >
> > Xorg.log
> >
> > [  1901.000] (EE) intel(0): sna_mode_redisplay: page flipping failed,
> > disabling CRTC:3 (pipe=0)
> > [  1901.365] (EE) intel(0): sna_mode_redisplay: page flipping failed,
> > disabling CRTC:5 (pipe=1)
> > [  1901.441] (EE) intel(0): Detected a hung GPU, disabling acceleration.
> > [  2841.578] (II) UnloadModule: "mouse"
> > [  2841.578] (II) UnloadModule: "kbd"
> > [  2841.579] (II) intel(0): switch to mode 1366x768@60.0 on pipe 0 using
> > LVDS1, position (0, 0), rotation normal
> > [  2841.632] (EE) intel(0): failed to set mode: Unknown error: -22
> > [  2841.632] (II) intel(0): switch to mode 1280x720@60.3 on pipe 1 using
> > VGA1, position (0, 0), rotation normal
> > [  2841.683] (EE) intel(0): failed to set mode: Unknown error: -22
>
>     This looks off -- it's the Linux kernel error code for EINVAL
> (FreeBSD error codes in the kernel being positive).
> Cheers,
> -Garrett
>

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